Skip the auto shop - Our mechanics make house calls

Q: Why do I get heavy fumes smell while the car idles?

asked by on

Heavy fume smell while car is idealing

Hi there. Check the ignition system to see if the spark plugs have wet fuel on them. If they have fuel on them, then check to see if the spark plug wires are good and have any burn spots. Check to see if the ignition coil it producing any voltage. If the ignition system is good, then check the injectors. The injectors could be leaking and making extra fuel go into the combustion chamber, which then will blow into the exhaust system. Replace any parts that you find not working. If you need further assistance with the fuel exhaust smell when the vehicle is at idle, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Why do I get heavy fumes smell while the car idles?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My engine light came on code shoed P0037 its a Lexus is300 is it just changing the o2 sensor?

P0037 is an oxygen sensor code referring to bank 1 sensor 2. This is the right hand side of the engine and the second sensor on that side. The code may be caused by the catalyst on that side or...

Q: Car idling low at stop

If you have a Check Engine Light, I would start there. Any codes that are found will aid in the diagnosis of your issue. It is possible that you could have an issue with your idle air control valve. I...

Q: volkswagon is buying back my diesel and am thinking of buying an audi A 3 but nervous about cost to own. why is the oil change so

The A3 oil change is a bit more expensive because it has a turbo-charged engine. The turbocharger utilizes exhaust gas energy to drive a compressor for intake air for the engine, and experiences very high temperatures. This requires the use...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.